Reset the meter to zero by pushing the meter reset knob
(8) Adjust engine throttle for desired flow rate
The breakaway fitting Is a safety feature on
hose reel for 2-inch hose. It consists of a
breakaway coupling installed between
2-inch hose and outlet port of the hose reel.
Should aircraft be moved with single point
nozzle attached to wing, the coupling will
break apart as hose Is pulled tight against the
coupling, preventing damage to the aircraft.
For reassembly of breakaway fitting refer to
reel. Unreel all 50-feet of 2-inch hose to ensure that
breakaway feature will be operable.
(M970 and M970A1).
(4) When enough fuel is collected, unscrew fuel
sampling coupling from the adapter. Install cap on adapter
Bonding of the semitrailer to aircraft and
and put fuel sampling coupling in tool box.
Aircraft Single Point Underwing Fuel Dispensing
regardless of the amount of fuel to be
Operation. This operation is used to dispense metered fuel
dispensed, due to the dangers of static
from semitrailer to an aircraft through an underwing
connection. Fuel is pumped through the filter/separator, a
to the aircraft before bringing nozzle in
meter, and a hose reel to the aircraft (fig. 2-37). Operation
contact with the aircraft.
is as follows:
wire to aircraft. Connect single point nozzle to adapter on
aircraft. Open nozzle by turning lever on side of nozzle.
(11) Unreel deadman control hose and activate
deadman control S by depressing control lever. Meter
Hose reel cabinet door Is heavy-use two
inlet gage (fig. 2-15) should indicate a minimum of 25 psi.
hands when opening and closing. Use
Should gage not indicate a minimum of 25 psi, shut down
latches to lock door. Do not slam.
operation and contact unit maintenance.
(12) Release deadman control S at end of
(2) Open hose reel cabinet door. Pull release
and adjust engine to idle speed
cable and' lift door with both hands.
(1000-1200 rpm). Rewind the deadman control hose.
(13) Close single point nozzle. First disconnect
(3) Ensure that all valves are closed.
single point nozzle from aircraft, then disconnect the
nozzle ground wire.
(4) Unreel the static reel cable and connect it
first to grounding stud and then to aircraft.
(5) Remove fire extinguishers and take to point
Tighten hose reel lock.
(16) Close all valves and shut off engine
adjust engine speed to 1000-1200 rpm.